Psoriasis: Histological Skin Examination (IMAGE) University of Würzburg Caption Increased scaling (*) is found in psoriasis (A) compared to healthy skin (B) and a visible extension of the topmost skin layer (epidermis, **). Below a cluster of inflammation cells (+). The line marks a length of one tenth of a millimetre. Credit Figure: University Dermatology Clinic Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.